njrat | 3d8b03dd0d32e8b35e85d8f3fe30c4df806607b506c465c35ca66c2e93ae489d

General

Target

3D8B03DD0D32E8B35E85D8F3FE30C4DF806607B506C46.exe
Size

254KB
MD5

0a8eb56e089d298f7dab780b3218e504
SHA1

5963b1eb8243672225721ee5ce897eae2c748f8f
SHA256

3d8b03dd0d32e8b35e85d8f3fe30c4df806607b506c465c35ca66c2e93ae489d
SHA512

b650775cf304a323e22cdeee3da91acb10bc80a9f7d6e4e913c7f5d5cfe9c0533e89ae8af3a0338813e4439841f01dd7c6a5729d83a4034bacf89ea39cd3a066

Score

10^/10

njrat hacked evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

fr3onhoms.ddns.net:5552

Mutex

39142952441e8c6dd1c68259493b5832

Attributes

reg_key
39142952441e8c6dd1c68259493b5832
splitter
|'|'|

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat
Executes dropped EXE 1 IoCs

Processes:

igfxTray.exe

pid process

1300 igfxTray.exe
Modifies Windows Firewall 1 TTPs
evasion

Modify Existing Service
T1031

pid	process
1300	igfxTray.exe

Drops startup file 2 IoCs

Processes:

igfxTray.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\39142952441e8c6dd1c68259493b5832.exe	igfxTray.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\39142952441e8c6dd1c68259493b5832.exe	igfxTray.exe

Loads dropped DLL 1 IoCs

Processes:

3D8B03DD0D32E8B35E85D8F3FE30C4DF806607B506C46.exe

pid process

820 3D8B03DD0D32E8B35E85D8F3FE30C4DF806607B506C46.exe

pid	process
820	3D8B03DD0D32E8B35E85D8F3FE30C4DF806607B506C46.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

igfxTray.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1669990088-476967504-438132596-1000\Software\Microsoft\Windows\CurrentVersion\Run\39142952441e8c6dd1c68259493b5832 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\igfxTray.exe\" .."	igfxTray.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\39142952441e8c6dd1c68259493b5832 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\igfxTray.exe\" .."	igfxTray.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 31 IoCs

Processes:

igfxTray.exe

description	pid	process
Token: SeDebugPrivilege	1300	igfxTray.exe
Token: 33	1300	igfxTray.exe
Token: SeIncBasePriorityPrivilege	1300	igfxTray.exe
Token: 33	1300	igfxTray.exe
Token: SeIncBasePriorityPrivilege	1300	igfxTray.exe
Token: 33	1300	igfxTray.exe
Token: SeIncBasePriorityPrivilege	1300	igfxTray.exe
Token: 33	1300	igfxTray.exe
Token: SeIncBasePriorityPrivilege	1300	igfxTray.exe
Token: 33	1300	igfxTray.exe
Token: SeIncBasePriorityPrivilege	1300	igfxTray.exe
Token: 33	1300	igfxTray.exe
Token: SeIncBasePriorityPrivilege	1300	igfxTray.exe
Token: 33	1300	igfxTray.exe
Token: SeIncBasePriorityPrivilege	1300	igfxTray.exe
Token: 33	1300	igfxTray.exe
Token: SeIncBasePriorityPrivilege	1300	igfxTray.exe
Token: 33	1300	igfxTray.exe
Token: SeIncBasePriorityPrivilege	1300	igfxTray.exe
Token: 33	1300	igfxTray.exe
Token: SeIncBasePriorityPrivilege	1300	igfxTray.exe
Token: 33	1300	igfxTray.exe
Token: SeIncBasePriorityPrivilege	1300	igfxTray.exe
Token: 33	1300	igfxTray.exe
Token: SeIncBasePriorityPrivilege	1300	igfxTray.exe
Token: 33	1300	igfxTray.exe
Token: SeIncBasePriorityPrivilege	1300	igfxTray.exe
Token: 33	1300	igfxTray.exe
Token: SeIncBasePriorityPrivilege	1300	igfxTray.exe
Token: 33	1300	igfxTray.exe
Token: SeIncBasePriorityPrivilege	1300	igfxTray.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

3D8B03DD0D32E8B35E85D8F3FE30C4DF806607B506C46.exeigfxTray.exe

description	pid	process	target process
PID 820 wrote to memory of 1300	820	3D8B03DD0D32E8B35E85D8F3FE30C4DF806607B506C46.exe	igfxTray.exe
PID 820 wrote to memory of 1300	820	3D8B03DD0D32E8B35E85D8F3FE30C4DF806607B506C46.exe	igfxTray.exe
PID 820 wrote to memory of 1300	820	3D8B03DD0D32E8B35E85D8F3FE30C4DF806607B506C46.exe	igfxTray.exe
PID 820 wrote to memory of 1300	820	3D8B03DD0D32E8B35E85D8F3FE30C4DF806607B506C46.exe	igfxTray.exe
PID 1300 wrote to memory of 320	1300	igfxTray.exe	netsh.exe
PID 1300 wrote to memory of 320	1300	igfxTray.exe	netsh.exe
PID 1300 wrote to memory of 320	1300	igfxTray.exe	netsh.exe
PID 1300 wrote to memory of 320	1300	igfxTray.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\3D8B03DD0D32E8B35E85D8F3FE30C4DF806607B506C46.exe
"C:\Users\Admin\AppData\Local\Temp\3D8B03DD0D32E8B35E85D8F3FE30C4DF806607B506C46.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:820

C:\Users\Admin\AppData\Local\Temp\igfxTray.exe
"C:\Users\Admin\AppData\Local\Temp\igfxTray.exe"
2⤵
- Executes dropped EXE
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1300

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\igfxTray.exe" "igfxTray.exe" ENABLE
3⤵
PID:320

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\igfxTray.exe
MD5
0a8eb56e089d298f7dab780b3218e504

SHA1
5963b1eb8243672225721ee5ce897eae2c748f8f

SHA256
3d8b03dd0d32e8b35e85d8f3fe30c4df806607b506c465c35ca66c2e93ae489d

SHA512
b650775cf304a323e22cdeee3da91acb10bc80a9f7d6e4e913c7f5d5cfe9c0533e89ae8af3a0338813e4439841f01dd7c6a5729d83a4034bacf89ea39cd3a066

Download Submit
C:\Users\Admin\AppData\Local\Temp\igfxTray.exe
MD5
0a8eb56e089d298f7dab780b3218e504

SHA1
5963b1eb8243672225721ee5ce897eae2c748f8f

SHA256
3d8b03dd0d32e8b35e85d8f3fe30c4df806607b506c465c35ca66c2e93ae489d

SHA512
b650775cf304a323e22cdeee3da91acb10bc80a9f7d6e4e913c7f5d5cfe9c0533e89ae8af3a0338813e4439841f01dd7c6a5729d83a4034bacf89ea39cd3a066

Download Submit
\Users\Admin\AppData\Local\Temp\igfxTray.exe
MD5
0a8eb56e089d298f7dab780b3218e504

SHA1
5963b1eb8243672225721ee5ce897eae2c748f8f

SHA256
3d8b03dd0d32e8b35e85d8f3fe30c4df806607b506c465c35ca66c2e93ae489d

SHA512
b650775cf304a323e22cdeee3da91acb10bc80a9f7d6e4e913c7f5d5cfe9c0533e89ae8af3a0338813e4439841f01dd7c6a5729d83a4034bacf89ea39cd3a066

Download Submit
memory/320-82-0x0000000076071000-0x0000000076073000-memory.dmp

Filesize
8KB

Download
memory/320-81-0x0000000000000000-mapping.dmp

Download
memory/820-60-0x0000000002049000-0x000000000204A000-memory.dmp

Filesize
4KB

Download
memory/820-57-0x0000000002048000-0x0000000002049000-memory.dmp

Filesize
4KB

Download
memory/820-61-0x00000000020E0000-0x00000000020E6000-memory.dmp

Filesize
24KB

Download
memory/820-62-0x000000000204A000-0x000000000204B000-memory.dmp

Filesize
4KB

Download
memory/820-63-0x000000000204B000-0x000000000204C000-memory.dmp

Filesize
4KB

Download
memory/820-64-0x000000000204C000-0x000000000204D000-memory.dmp

Filesize
4KB

Download
memory/820-56-0x0000000002035000-0x0000000002046000-memory.dmp

Filesize
68KB

Download
memory/820-58-0x0000000002046000-0x0000000002047000-memory.dmp

Filesize
4KB

Download
memory/820-59-0x0000000002047000-0x0000000002048000-memory.dmp

Filesize
4KB

Download
memory/820-53-0x0000000000840000-0x0000000000841000-memory.dmp

Filesize
4KB

Download
memory/820-55-0x0000000002030000-0x0000000002031000-memory.dmp

Filesize
4KB

Download
memory/1300-69-0x0000000000D80000-0x0000000000D81000-memory.dmp

Filesize
4KB

Download
memory/1300-71-0x0000000000980000-0x0000000000981000-memory.dmp

Filesize
4KB

Download
memory/1300-74-0x0000000000997000-0x0000000000998000-memory.dmp

Filesize
4KB

Download
memory/1300-73-0x0000000000996000-0x0000000000997000-memory.dmp

Filesize
4KB

Download
memory/1300-75-0x0000000000998000-0x0000000000999000-memory.dmp

Filesize
4KB

Download
memory/1300-76-0x0000000000999000-0x000000000099A000-memory.dmp

Filesize
4KB

Download
memory/1300-79-0x000000000099B000-0x000000000099C000-memory.dmp

Filesize
4KB

Download
memory/1300-78-0x000000000099A000-0x000000000099B000-memory.dmp

Filesize
4KB

Download
memory/1300-80-0x000000000099C000-0x000000000099D000-memory.dmp

Filesize
4KB

Download
memory/1300-72-0x0000000000985000-0x0000000000996000-memory.dmp

Filesize
68KB

Download
memory/1300-66-0x0000000000000000-mapping.dmp

Download
memory/1300-83-0x000000000099D000-0x000000000099E000-memory.dmp

Filesize
4KB

Download
memory/1300-84-0x0000000005100000-0x0000000005103000-memory.dmp

Filesize
12KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads